Matomo upgrade issues: Mysqli prepare error: Unknown column 'login' in 'where clause'

[heurteph-ei (Philippe)]

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Mysqli prepare error: Unknown column 'login' in 'where clause'

I attempted logging into my matomo today and I got this error: “Mysqli prepare error: Unknown column ‘login’ in ‘where clause’”. Does anyone have any pointer to the cause and fix? Thank you. Matomo version is: 4.6.1 and I’ve never had this issue before.